Finding the Third Proportional to 197,694 and 423,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   197,694 : 423,991.50 = 423,991.50 : x
2. Step 2: Convert to fraction form
   197,694/423,991.50 = 423,991.50/x
3. Step 3: Cross multiply
   197,694x = 423,991.50 × 423,991.50
4. Step 4: Simplify right side
   197,694x = 179,768,792,072.25
5. Step 5: Solve for x
   x = 179,768,792,072.25/197,694
6. Step 6: Final answer
   x = 909,328.52